Study of D sub s sup + r arrow. phi. e sup +. nu. sub e and the absolute D sub s sup + r arrow. phi. pi. sup + branching fraction

Journal Article · Mon Jun 11 04:00:00 EDT 1990 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.64.2885· OSTI ID:6760915

Anjos, J C; Appel, J A; Bean, A; Bracker, S B; Browder, T E; Cremaldi, L M; Duboscq, J E; Elliott, J R; Escobar, C O; Gibney, M C; Hartner, G F; Karchin, P E; Kumar, B R; Losty, M J; Luste, G J; Mantsch, P M; Martin, J F; McHugh, S; Menary, S R; Morrison, R J ; Nash, T; Ong, P; Pinfold, J; Punkar, G; Purohit, M V; Santoro, A F.S.; Sidhu, J S; Sliwa, K; Sokoloff, M D; Souza, M H.G.; Spalding, W J; Streetman, M E; Stundzia, A B; Witherell, M S ^[1]

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1. University of California; Santa Barbara; CA (USA) Carleton University; Ottawa; Ontario (Canada) Centro Brasileiro de Pesquisas Fisicas; Rio de Janeiro (Brazil) University of Colorado; Boulder; CO (USA) Fermi National Accelerator Laboratory; Batavia; IL (USA) National Research Council; Ottawa; Ontario (Canada) Universidade de Sao Paulo; Sao Paulo (Brazil) University of Toronto; Toronto; Ontario (Canada) Yale University; New Haven; CT (USA) University of Mississippi; Oxford; MS (USA) Princeton University; Princeton; N

We have searched for the decay {ital D}{sub {ital s}}{sup +}{r arrow}{phi}{ital e}{sup +}{nu}{sub {ital e}} in data from the Fermilab charm photoproduction experiment E691. The resulting upper limit is {ital B}({ital D}{sub {ital s}}{sup +}{r arrow}{phi}{ital e}{sup +}{nu}{sub {ital e}}){lt}0.45{ital B}({ital D}{sub {ital s}}{sup +}{r arrow}{phi}{pi}{sup +}). Since the branching fraction for {ital D}{sub {ital s}}{sup +}{r arrow}{phi}{ital e}{sup +}{nu}{sub {ital e}} can be calculated from the measured branching fraction {ital B}({ital D}{sup +}{r arrow}{ital {bar K}} {sup *0}{ital e}{sup +}{nu}{sub {ital e}}) to be (1.7{plus minus}0.3)%, this implies a 90%-confidence-level lower limit on {ital B}({ital D}{sub {ital s}}{sup +}{r arrow}{phi}{pi}{sup +}) of 3.4%.

• OSTI ID: 6760915
• Journal Information: Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 64:24; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

645102 -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Weak Interactions & Properties
645103* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Interactions & Baryon & Meson Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCELERATORS
BOSONS
BRANCHING RATIO
CHARM PARTICLES
CHARMED MESONS
CYCLIC ACCELERATORS
D S MESONS
DATA
DATA ANALYSIS
DECAY
ELEMENTARY PARTICLES
EXPERIMENTAL DATA
FERMILAB TEVATRON
FERMIONS
HADRONS
INFORMATION
LEPTONS
LIMITING VALUES
MASS SPECTRA
MESONS
NUMERICAL DATA
PARTICLE DECAY
PARTICLE IDENTIFICATION
PHI-1020 MESONS
QUARKONIUM
SEMILEPTONIC DECAY
SPECTRA
STRANGEONIUM
SYNCHROTRONS
VECTOR MESONS
WEAK PARTICLE DECAY